Welcome to BOAT ANCHOR AUDIO
BOAT ANCHOR AUDIO specializes in the design of Development Boards for the audio industry, with the boards themselves manufactured in one of the largest PCB fabs in the world.
Currently we offer two PCBs that enable developers to simplify the design of audio filters.
UNIVERSAL AUDIO FILTER
Using this board a designer is able to quickly change out the components that determine the characteristics of a State Variable Filter, such as Q, frequency response and power consumption.
This filter is suitable for the frequency range of 30cps to 20kcs and any effect on component change may be seen on a Bode Plot or audio network analyzer.
The filter uses the popular TL074 quad OP AMP but many other op amps with the same pinout may be substituted.
TWIN-T NOTCH FILTER
Like our UAF above, our TWIN-T Notch Filter Board allows the developer the ability to quickly change out the components that control the characteristics of the filter.
This filter also uses the TL074 which may be changed out for many other OP AMPS with the same pin out.
OP AMP CIRCUIT DESIGN BOARD
Boat Anchor Audio will soon be introducing a new product that will enable the quick prototyping OP AMP audio circuits as well as testing and evaluation of OP AMPs that use the pin-out of the TL074 (14-pin) or the TL072 (8-pin) IC.
By using your existing audio generator and scope, you will be able to quickly evaluate circuits and test for:
Slew Rate
Frequency Response
Input Offset Voltage
PSRR
CMRR
Open Circuit Gain
Gain Bandwidth Product
Input noise density
and other common tests as well as more advanced tests.
While other devices are available, they usually consist of LED readouts that give a simple Pass/Fail results and are unable to do advanced testing for audio circuits.
Our tester is designed to quickly test various input configurations (inverted and non-inverted) and different feedback networks.
Unused OP AMPs on the DUT can be easily isolated and terminated as necessary using pin jumpers so as not to interfere with the test results of the amp being evaluated.
We are having prototype boards being made now and expect them for QA testing shortly.
Below is the schematic of our Test and Evaluation Board. Note that we use terminal blocks for securing your input (inverted and non-inverted) and feedback networks for easy component adjustment or change-out. Pin connectors are used for fast OP AMP isolation or grounding. Test points are provide for testing at various locations as needed.
Please note that you will need an audio frequency generator and a oscilloscope for these tests.